Intro
Introduction
Contents
About the Editors
Inception of Debris Avalanches: A Material Point Method Modelling
1 Introduction
2 Materials and Methods
2.1 The Material Point Method (MPM)
2.2 Scheme and Input Data
3 Modelling the Impact-Induced Debris Avalanche
4 Remarks on the Inception Mechanisms
5 Concluding Remarks
References
Research on the Calculation of Segment Floating Considering the Action Degree of Soil Arching Effect
1 Introduction
2 Analysis of Segment Floating
2.1 The Effect of Groundwater

2.2 The Impact of the Tunnel Wall Grouting and Grouting Slurry
2.3 The Impact of Back Channeling of Mud Slurry
2.4 The Impact of Rebound Action of Foundation
3 Stress Analysis of Segment
3.1 Establishment of Calculation Model
3.2 Calculation of Buoyancy
3.3 Calculation of Anti-buoyancy
3.4 Integral Calculation of Segment Buoyancy
4 Application in Practical Project
5 Effective Anti-floating Measures for Segments on Site
5.1 Controlling the Shield Attitude
5.2 Stacking Heavy Objects in the Tunnel
5.3 Adjusting the Value of Tunneling Parameters

5.4 Adjusting the Mixture Ratio of Grouting Slurry
6 Conclusions
References
Invert Heave Disease and Treatment Measures of Operating Railway Tunnel in Horizontal Layered Rock Mass
1 Introduction
2 Project Overview
3 Field Investigation of Geological Conditions and Tunnel Support
3.1 Survey of Lithology and Rock Mass Structure
3.2 In-Situ Stress Test
3.3 Inspection of Tunnel Support
4 Three-Dimensional Numerical Analysis
4.1 Numerical Modeling with Layered Rock Mass
4.2 Comparison for Cases with and Without Layered Rock Mass

4.3 Influence of Horizontal In-Situ Stress
5 Numerical Analysis of Two Treatment Schemes
5.1 Options for Treatment Scheme
5.2 Displacement of Tunnel Structure
5.3 Structural Stress of Tunnel Support Structure
6 Conclusions
References
A Semi-analytical Model for a Compaction-Grouted Soil Nail with Grout Bulb
1 Introduction
2 Energy Equilibrium Equation of the Soil Nail with Grout Bulb Considering the Compaction Effect
2.1 Establish of Relationship Considering Compaction Effect
2.2 Analysis of Soil Nail with a Grout Bulb
3 Laboratory Test Verification

3.1 Test System
3.2 Test Procedure
3.3 Verification of the Presented Method
3.4 Parameter Analysis
4 Conclusions
References
Prediction on the Penetration Resistance of Mono-Bucket Foundations in Silty Soil
1 Introduction
2 Prototype Field Test
3 Penetration Resistance Prediction
4 Calculation Method Based on Soil Parameters
5 Calculation Method Based on In-Situ CPT Test
6 Back-Analysis
7 Discussion
8 Conclusion
References
CPT and SPT as Complementary Tests for the Formulation of Geotechnical Design Profiles
1 Introduction